CVE-2023-52996

MEDIUM EPSS 15.8%
Published Mar 27, 20251y ago · Modified Jun 17, 20261w ago
5.5 CVSS 3.1
Medium
Find Similar
Published Mar 27, 2025 1y ago
Last Modified Jun 17, 2026 1w ago

Description

In the Linux kernel, the following vulnerability has been resolved: ipv4: prevent potential spectre v1 gadget in fib_metrics_match() if (!type) continue; if (type > RTAX_MAX) return false; ... fi_val = fi->fib_metrics->metrics[type - 1]; @type being used as an array index, we need to prevent cpu speculation or risk leaking kernel memory content.

CVSS Details

Base Score
5.5
Exploitability
1.8
Impact
3.6
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality None
Integrity None
Availability High

Threat Intelligence

EPSS Exploit Probability
15.8% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Affected Products 9

VendorProductVersionRange
linuxlinux_kernel*≥4.14  –  <5.4.231
linuxlinux_kernel*≥5.5  –  <5.10.166
linuxlinux_kernel*≥5.11  –  <5.15.91
linuxlinux_kernel*≥5.16  –  <6.1.9
linuxlinux_kernel6.2any
linuxlinux_kernel6.2any
linuxlinux_kernel6.2any
linuxlinux_kernel6.2any
linuxlinux_kernel6.2any

References 5

  • git.kernel.org https://git.kernel.org/stable/c/5e9398a26a92fc402d82ce1f97cc67d832527da0
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/7f9828fb1f688210e681268490576f0ca65c322a
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/8f0eb24f1a7a60ce635f0d757a46f1a37a4d467d
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/ca3cf947760de050d558293002ad3e7f4b8745d2
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/f9753ebd61be2d957b5504cbd3fd719674f05b7a
    Patch

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/5e9398a26a92fc402d82ce1f97cc67d832527da0
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/7f9828fb1f688210e681268490576f0ca65c322a
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/8f0eb24f1a7a60ce635f0d757a46f1a37a4d467d
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/ca3cf947760de050d558293002ad3e7f4b8745d2
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/f9753ebd61be2d957b5504cbd3fd719674f05b7a
    Patch